Improvement in fire-place stoves



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Fira-Place Stoves. N0.148,491 PatemedMarcMmmM.

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NITED STATES PATENT OFFICE.

JOHN B. OLDERSHAW, OF BALTIMORE, MARYLAND.

IMPROVEMENT IN FIRE-PLACE STOVES.

Specification forming part of Letters Patent No. 148,491., dated March 10, 1874 application tiled July 31, 1873.

To all whom it may concern:

Beit known that I, JOHN B. OLDnRsHAw, of Baltimore city and State of Maryland, have invented a new and Improved Fire Place Stove; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawing forming part of this specification, in which- Figure l is a front elevation; Fig. 2, a vertical sectional elevation; and Figs. 3 and 4, horizontal sections, partly broken away.

The invention relates to stoves set in fireplaces for the purpose of heating the apartment in which the fire-place is located, and also one or more thereabove.

In one form of these stoves are two side' columns, or a continuous column, extending from the side, around the back of the cylinder, with a division inside, and these columns are attached to the base and cylinder, for the purpose of conducting the smoke or products of combustion into the base before it passes into the smoke-pipe or out of the stove. The rire-cylinders are suspended from a metal ring between top of base and top of cylinder, or from the top of the stove, all being tubular in form, and having a jacket extending from the sides, and around the back, and over the top ofthe stove, with openings in it to pass the heat from the stove to the chimney-flue, which is the warm-air conductor. The latter is fastened to the metal front, and is merely a casing for back of the stove. The other form of cylinder stoves is classed as tire-board stoves. It is necessary in all these stoves to close the chimney flue either immediately above the stove or above the register in the room above. In the first case it leaves an aperture for the smoke-pipe, and an aperture for conveying, by means of a metal pipe, the heat concentrated between the stove and the chimneyiiue obstruction to the apartments above; in the other, an aperture for the smoke-pipe only, the chimney-flue forming the heat-conductor to the apartments above.

The invention will first be fully described, and then pointed out in the claims.

In the drawing, A represents a single apertured base-plate, on which rests the stovecylinder B, and ay curved back casing, O, that is provided with edge ilanges c c. The plate Ahas an upward circular flange, a, over which passes the cylinder B, and two curved parallel rear anges, a a', between which its the bottom of back plate. The cylinder B is provided with two wings, b b, that extend thereabove, and t between the edge anges c c and the rear rests c c. pended from the center of cylinder, having the front section d, before which are two sliding doors, E E, having the draft-holes e. This allows an open re in the room where the stove is placed. F is the combustion-chainber, which also has two sliding doors,G G, having the draft-holes ff. These draft-holes maybe provided with any preferred form of damper to graduate the quantity ot' air admitted. Above the combustion-chamber is a plate, H, having the short upper tube h, in which is a damper, h1, operated by a rod, h2, from the outside. The plate H also has a segmental portion cut out at one end, and the edge turned, as shown at h3.Y This construction allows the products of combustion to pass directly up, through tube h, into the space above, and into the outlet-pipe t' of the plate I, or, when the damper h1 is closed, to strike the top of plate H, be retarded thereby, and then pass through the segment -hole, over the top ot' plate, and-into the outlet-piped. The plate -I has a half-circle flange, 2, which has bent ends t3, that t behind the wings ot' cylinder, and a dampered opening, i, through which the heated air may pass directly into the room'in which the stove is situated. J is a detlector-plate, againstwhich the heated air impinges when it is pressed forward to the front and out of the opening i4. K is the capplate, having the upper Atube k, that connects with the pipe which discharges heated air into the room above, and is provided with a damper, kl, that is operated by a rod, k2, and a hole, 7c3, for the smoke-pipe z'.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination of the apertured baseplate A, stove-cylinder B, having wings b b, the casing O, and cap-plate K, to form a con- Dis the grate susv tinuous hot-air flue between the easing,` C, capplate, back,m1d top of cylinder B, as herein set forth, and for the purpose described.

2. The combination, with the combustionchmnber F, of the superposed plate H, having the segmental hole h3 and tube h, with dmnper h1, the plate I, and discharge-pipe 17, as herein shown l.ind described.

3. The combination of the base-plate A, cylinder B, and casing C with the cap-plate K, deflectingqalate J, and plate I, provided with a deugd/2, register i4, and smoke-pipe z', as herein shown and described.

JOHN B. OLDERSHAW.

Witnesses WM. F. EBERWEIN, FRED. KIRSGH. 

